Air duct cooling device of brushless lithium electric hammer

Abstract

The utility model discloses an air duct cooling device of a brushless lithium electric hammer, which comprises a brushless lithium electric hammer protection shell, the brushless lithium electric hammer protection shell is used for external protection of the brushless lithium electric hammer, and an air duct cooling auxiliary cleaning mechanism is clamped at one end of the brushless lithium electric hammer protection shell. A buffer adjusting mechanism is fixedly arranged at one end of the air duct cooling auxiliary cleaning mechanism; the positioning frame and the cleaning limiting frame which are fixed in the protective cover drive the buffer adjusting mechanism to be stabilized in the brushless lithium electric hammer protective shell, and the first cleaning frame and the second cleaning frame which are installed on the two sides of the installation frame conduct brushing on the inner wall of the ventilation groove and the inner wall of the ventilation guide frame respectively. The internal cooling air duct of the brushless lithium electric hammer protection shell is stably cleaned, so that the internal cooling air duct of the brushless lithium electric hammer protection shell is prevented from causing hidden dangers of dust deposition and blockage, and the use convenience of the brushless lithium electric hammer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless lithium-electric hammers, in particular to an air duct cooling device for a brushless lithium-electric hammer. Background Art

[0002] The electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammer mechanism. The electric hammer uses the principle of piston movement to compress the gas to impact the drill bit. It does not require much hand strength and can open 6-100mm holes in hard materials such as concrete, bricks, and stones. The electric hammer has a high efficiency in opening holes in the above materials.

[0003] In view of this, Chinese patent No. CN213352323U proposes an air duct cooling device for a brushless lithium-electric hammer, wherein a heat dissipation port is opened through a first cooling air duct and a second cooling air duct on the left side, a first fixed shell is installed on the upper side of the brushless lithium-electric hammer body, and a first cooling air duct is installed on the left side of the first fixed shell. This design solves the problem that the heat dissipation and cooling effect of the original brushless lithium-electric hammer is not good enough. The utility model has a reasonable structure, is easy to combine and install, and has high cooling efficiency. However, in the above patents, when the air duct cooling device of the brushless lithium-electric hammer is performing cooling work, due to the large amount of dust and impurities in the working environment, the interior of the air duct cooling device is prone to dust accumulation and impurity blockage, which reduces the ease of use of the air duct cooling device of the brushless lithium-electric hammer. Therefore, a air duct cooling device for a brushless lithium-electric hammer is needed. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide an air duct cooling device for a brushless lithium-electric hammer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes an air duct cooling device for a brushless lithium-electric hammer, comprising a brushless lithium-electric hammer protective shell, the brushless lithium-electric hammer protective shell is used for external protection of the brushless lithium-electric hammer, one end of the brushless lithium-electric hammer protective shell is clamped with an air duct cooling auxiliary cleaning mechanism, and one end of the air duct cooling auxiliary cleaning mechanism is fixedly provided with a buffer adjustment mechanism;

[0006] The air duct cooling auxiliary cleaning mechanism includes a protective cover, a positioning frame is fixedly provided at the top end of the inner wall of the protective cover, a positioning screw is rotatably provided at one end of the inner wall of the positioning frame, a movable frame is threadedly provided at one end of the outer wall of the positioning screw, a fixing rod is fixedly provided at the other side of the inner wall of the positioning frame, one end of the movable frame is slidably connected to one end of the outer wall of the fixing rod, a cleaning limit frame is fixedly provided on one side of the movable frame, a ventilation guide frame is provided on the other side of the inner wall of the brushless lithium-electric hammer protective shell, and a ventilation groove is provided at the top end of one side of the brushless lithium-electric hammer protective shell.

[0007] In one example, a motor is fixedly provided on one side of the positioning frame, and an output end of the motor passes through the positioning frame and is fixedly connected to one end of the positioning screw rod.

[0008] In one example, the buffer adjustment mechanism includes a mounting frame, a positioning rod is inserted into one side of the mounting frame, a spring is inserted into one end of the outer wall of the positioning rod, a limit block is fixedly provided at one end of the positioning rod, a first cleaning frame is fixedly provided at the other end of the positioning rod, and a second cleaning frame is fixedly provided on the other side of the mounting frame.

[0009] In one example, a positioning seat is fixedly provided on one side of the inner wall of the protective shell of the brushless lithium-electric hammer, and an induced draft fan is rotatably provided on one side of the positioning seat.

[0010] In one example, a snap-fit ​​frame is fixedly provided on the outer wall of one side of the protective cover, and a ventilation cover is opened in the middle position of the protective cover.

[0011] In one example, a fixed guide frame is fixedly provided at the bottom end of the brushless lithium-electric hammer protective shell.

[0012] In one example, a switch panel is fixedly provided on one side of the protective housing of the brushless lithium-electric hammer, and the motor and the induced draft fan are electrically connected to an external power supply through the switch panel.

[0013] The air duct cooling device for a brushless lithium-electric hammer proposed by the utility model can bring the following beneficial effects:

[0014] 1. The air duct cooling device of the brushless lithium-electric hammer drives the buffer adjustment mechanism to be stabilized inside the protective shell of the brushless lithium-electric hammer through the positioning frame and the cleaning limit frame fixed inside the protective cover, and turns on the motor switch so that the output end of the motor fixed on one side of the positioning frame drives the positioning screw to rotate, so that the movable frame drives the movable frame and the cleaning limit frame to move through the positioning of the fixed rod, so that the cleaning limit frame drives the mounting frame fixed at one end to move stably, so that the first cleaning frame and the second cleaning frame installed on both sides of the mounting frame brush the inner wall of the ventilation groove and the inner wall of the ventilation guide frame respectively, so that the internal cooling air duct of the protective shell of the brushless lithium-electric hammer is stably cleaned, so that the internal cooling air duct of the protective shell of the brushless lithium-electric hammer is free from the hidden dangers of dust accumulation and blockage, and the convenience of using the brushless lithium-electric hammer is increased.

[0015] 2. The air duct cooling device of the brushless lithium-electric hammer is provided with a positioning rod inserted on one side of the mounting frame, so that the first cleaning frame fixed on one end of the positioning rod is elastically buffered by a spring inserted on the outer wall of the positioning rod, so that the inner wall of the ventilation groove can be closely contacted and cleaned, and at the same time it is convenient to disassemble the protective cover, thereby improving the convenience of the later care of the protective shell of the brushless lithium-electric hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the air duct cooling device of the brushless lithium electric hammer of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the air duct cooling auxiliary cleaning mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the protective cover of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the buffer adjustment mechanism of the utility model.

[0022] In the figure: 1. protective shell of brushless lithium electric hammer; 2. ventilation slot; 3. protective cover; 4. fixed guide frame; 5. positioning seat; 6. induced draft fan; 7. cleaning limit frame; 8. positioning frame; 9. positioning screw; 10. motor; 11. moving frame; 12. locking frame; 13. ventilation hood; 14. positioning rod; 15. spring; 16. limit block; 17. first cleaning frame; 18. second cleaning frame; 19. mounting frame. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] The embodiments are as follows. The utility model provides Figure 1-5The air duct cooling device of a brushless lithium-electric hammer shown in the figure comprises a brushless lithium-electric hammer protective shell 1. The brushless lithium-electric hammer protective shell 1 is used for external protection of the brushless lithium-electric hammer. An air duct cooling auxiliary cleaning mechanism is clamped on one end of the brushless lithium-electric hammer protective shell 1. A buffer adjustment mechanism is fixedly provided on one end of the air duct cooling auxiliary cleaning mechanism.

[0026] The air duct cooling auxiliary cleaning mechanism includes a protective cover 3, a positioning frame 8 is fixedly provided at the top end of the inner wall of the protective cover 3, a positioning screw rod 9 is rotatably provided at one end of the inner wall of the positioning frame 8, and a movable frame 11 is threadedly provided at one end of the outer wall of the positioning screw rod 9, and a fixing rod is fixedly provided on the other side of the inner wall of the positioning frame 8, one end of the movable frame 11 is slidably connected with one end of the outer wall of the fixing rod, and a cleaning limit frame 7 is fixedly provided on one side of the movable frame 11, and a ventilation guide frame is provided on the other side of the inner wall of the brushless lithium-electric hammer protective shell 1, and a ventilation groove 2 is provided at the top end of one side of the brushless lithium-electric hammer protective shell 1, so that the first cleaning frame 17 and the second cleaning frame 18 installed on both sides of the mounting frame 19 are respectively brushed on the inner wall of the ventilation groove 2 and the inner wall of the ventilation guide frame, so that the internal cooling air duct of the brushless lithium-electric hammer protective shell 1 is stably cleaned, so that the internal cooling air duct of the brushless lithium-electric hammer protective shell 1 can avoid the hidden dangers of dust accumulation and blockage, and increase the convenience of use of the brushless lithium-electric hammer.

[0027] A motor 10 is fixedly provided on one side of the positioning frame 8 , and an output end of the motor 10 passes through the positioning frame 8 and is fixedly connected to one end of the positioning screw rod 9 .

[0028] Furthermore, the buffer adjustment mechanism includes a mounting frame 19, a positioning rod 14 is inserted into one side of the mounting frame 19, a spring 15 is inserted into one end of the outer wall of the positioning rod 14, a limit block 16 is fixedly provided at one end of the positioning rod 14, a first cleaning frame 17 is fixedly provided at the other end of the positioning rod 14, and a second cleaning frame 18 is fixedly provided on the other side of the mounting frame 19, so that the first cleaning frame 17 fixed at one end of the positioning rod 14 is elastically buffered by the spring 15 inserted into the outer wall of the positioning rod 14, so that the inner wall of the ventilation slot 2 is closely contacted and cleaned, and at the same time it is convenient for the protective cover 3 to be disassembled, thereby improving the convenience of the later care of the protective shell 1 of the brushless lithium electric hammer.

[0029] Furthermore, a positioning seat 5 is fixedly provided on one side of the inner wall of the brushless lithium-electric hammer protective shell 1, and an induced draft fan 6 is rotatably provided on one side of the positioning seat 5.

[0030] A snap-fit ​​frame 12 is fixedly provided on the outer wall of one side of the protective cover 3 , and a ventilation cover 13 is provided in the middle of the protective cover 3 .

[0031] Furthermore, a fixed guide frame 4 is fixedly provided at the bottom end of the brushless lithium-electric hammer protective shell 1.

[0032] Furthermore, a switch panel is fixedly provided on one side of the protective housing 1 of the brushless lithium-electric hammer, and the motor 10 and the induced draft fan 6 are electrically connected to the external power supply through the switch panel.

[0033] Working principle: When the air duct cooling device of the brushless lithium electric hammer needs to be used, the staff will clamp the protective cover 3 on one side of the brushless lithium electric hammer protective shell 1 through the clamping frame 12, so that the positioning frame 8 and the cleaning limit frame 7 fixed inside the protective cover 3 drive the buffer adjustment mechanism to stabilize inside the brushless lithium electric hammer protective shell 1, turn on the motor switch, so that the output end of the motor 10 fixed on one side of the positioning frame 8 drives the positioning screw 9 to rotate, so that the moving frame 11 drives the moving frame 11 and the cleaning limit frame 7 to move through the positioning of the fixed rod, so that the cleaning limit frame 7 drives the mounting frame 19 fixed at one end to move stably, so that the first cleaning frame installed on both sides of the mounting frame 19 17 and the second cleaning frame 18 brush the inner wall of the ventilation slot 2 and the inner wall of the ventilation guide frame respectively, so that the internal cooling air duct of the brushless lithium-electric hammer protective shell 1 is stably cleaned, so that the internal cooling air duct of the brushless lithium-electric hammer protective shell 1 avoids the hidden dangers of dust accumulation and blockage, and increases the convenience of using the brushless lithium-electric hammer. By inserting a positioning rod 14 on one side of the mounting frame 19, the first cleaning frame 17 fixed at one end of the positioning rod 14 is elastically buffered by the spring 15 inserted on the outer wall of the positioning rod 14, so that the inner wall of the ventilation slot 2 is closely contacted and cleaned, and at the same time it is convenient to disassemble the protective cover 3, thereby improving the convenience of later care of the brushless lithium-electric hammer protective shell 1.

[0034] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0035] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An air duct cooling device for a brushless lithium electric hammer, comprising: Brushless lithium-electric hammer protective housing (1) The brushless lithium-electric hammer protective housing (1) is used for external protection of the brushless lithium-electric hammer, one end of the brushless lithium-electric hammer protective housing (1) is provided with an air duct cooling auxiliary cleaning mechanism, and one end of the air duct cooling auxiliary cleaning mechanism is fixedly provided with a buffer adjustment mechanism; The invention is characterized in that: the air duct cooling auxiliary cleaning mechanism comprises a protective cover (3), a positioning frame (8) is fixedly provided at the top end of the inner wall of the protective cover (3), a positioning screw (9) is rotatably provided at one end of the inner wall of the positioning frame (8), a movable frame (11) is threadedly provided at one end of the outer wall of the positioning screw (9), a fixed rod is fixedly provided at the other side of the inner wall of the positioning frame (8), one end of the movable frame (11) is slidably connected to one end of the outer wall of the fixed rod, a cleaning limit frame (7) is fixedly provided at one side of the movable frame (11), a ventilation guide frame is provided at the other side of the inner wall of the brushless lithium electric hammer protective shell (1), and a ventilation slot (2) is provided at the top end of one side of the brushless lithium electric hammer protective shell (1).

2. The air duct cooling device for a brushless lithium electric hammer according to claim 1 is characterized in that: A motor (10) is fixedly provided on one side of the positioning frame (8), and an output end of the motor (10) passes through the positioning frame (8) and is fixedly connected to one end of a positioning screw rod (9).

3. The air duct cooling device for a brushless lithium electric hammer according to claim 1 is characterized in that: The buffer adjustment mechanism comprises a mounting frame (19), a positioning rod (14) is inserted into one side of the mounting frame (19), a spring (15) is inserted into one end of the outer wall of the positioning rod (14), a limiting block (16) is fixedly provided at one end of the positioning rod (14), a first cleaning frame (17) is fixedly provided at the other end of the positioning rod (14), and a second cleaning frame (18) is fixedly provided at the other side of the mounting frame (19).

4. The air duct cooling device for a brushless lithium electric hammer according to claim 2 is characterized in that: A positioning seat (5) is fixedly provided on one side of the inner wall of the brushless lithium-electric hammer protective housing (1), and an induced draft fan (6) is rotatably provided on one side of the positioning seat (5).

5. The air duct cooling device for a brushless lithium electric hammer according to claim 1 is characterized in that: A snap-fit ​​frame (12) is fixedly provided on the outer wall of one side of the protective cover (3), and a ventilation cover (13) is provided in the middle of the protective cover (3).

6. The air duct cooling device for a brushless lithium electric hammer according to claim 1, characterized in that: A fixed guide frame (4) is fixedly provided at the bottom end of the brushless lithium-electric hammer protective housing (1).

7. The air duct cooling device for a brushless lithium electric hammer according to claim 4 is characterized in that: A switch panel is fixedly provided on one side of the brushless lithium-electric hammer protective housing (1), and the motor (10) and the induced draft fan (6) are both electrically connected to an external power source via the switch panel.

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